Given the error message shown to you, that's not a question ban. That's just you being on some public network that SO received a lot of abuse from. Use another network, or try on another location, and you should be good to go I guess. It's not stating you are the spammer, it merely states that spam and abuse are originating from your network.
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BartJun 6 '14 at 10:13

@Bart The most annoying fact is that the ban is intermittent, meaning that after 5 or 15 minutes there is no ban but after another few minutes it's there again. Don't know what's going on here.. Can you suggest a proxy? I've not so much choice as of the location unfortunately.
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user3710273Jun 6 '14 at 10:15

1

No, I can't. If I recall correctly a decent solution is to post solid content from a location where you can do so. With sufficient rep/prove you're a good user, I think the system will stop bothering you at a point. (Though that could use some confirmation from those who know).
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BartJun 6 '14 at 10:16

That's what I'm doing as I've no one-liner questions nor ones lacking information and effort. It's difficult to contribute in such an environment. As far as rep goes It's not up to me if I get an upvote or not, though I did as I see now. Hope the system will recognize this.
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user3710273Jun 6 '14 at 10:17

1 Answer
1

Your post cannot be submitted at this time due to the volume of spam and abuse originating from your network. We apologize for any inconvenience. See the help center for more.

(Emphasis added).

This is a low-level IP based block to prevent spam and by and large it's effective. However, it does occasionally catch innocent users like yourself.

Do you regularly post from a public network, a university network or a workplace?

In this case the actions of your fellow user on that network will affect you.

The only way round this is to either:

Find a different network or get a static IP address from your ISP. In this latter case only your contributions will affect you.

Post good content. As Bart mentions in his comment if the system recognises you as a valuable user (good rep, low flags against your posts, etc.) then the low level IP block won't affect you.

The reason this ban is intermittent is that you are connecting to Stack Overflow from a number of IP addresses, but only one is spam blocked. If you can identify that network then you should be able to avoid it in future.

Wikipedia has the same problem with their IP bans.
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staticxJun 6 '14 at 10:32

9

Now I fully got the picture of this type of ban. The way I'll be doing is to post non-low-quality content as I'm always doing and hope the system will recognize it. Thanks again!
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user3710273Jun 6 '14 at 10:38

2

Also, I should mention that we get a lot of spam and trolling from Tor, so if you are using that anonymizing service, don't be surprised if you are blocked from posting from time to time.
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Brad Larson♦Jun 6 '14 at 15:25

But the rep for number 2 must be really big. When I post from my phone I always have to fill some captcha.
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Vladimir FJun 7 '14 at 10:46